Android6.0之后推出动态申请权限，所有敏感权限默认都是没有开启的状态，需要动态添加权限的。但是项目中有些三方预置的apk需要默认将权限开启。
DefaultPermissionGrantPolicy.java是对预置应用默认权限管理类
/frameworks/base/services/core/java/com/android/server/pm/DefaultPermissionGrantPolicy.java
private void grantDefaultSystemHandlerPermissions(int userId) {
synchronized (mService.mPackages) {
String familyzonePkgStr = "包名";
PackageParser.Package familyzonePkg = getPackageLPr(familyzonePkgStr);
if(familyzonePkg != null){
grantRuntimePermissionsLPw(familyzonePkg, PHONE_PERMISSIONS, userId);
grantRuntimePermissionsLPw(familyzonePkg, STORAGE_PERMISSIONS, userId);
grantRuntimePermissionsLPw(familyzonePkg, LOCATION_PERMISSIONS, userId);
grantRuntimePermissionsLPw(familyzonePkg, CONTACTS_PERMISSIONS, userId);
}
或者
Set<String> SYSDLL_PERMISSIONS = new ArraySet<>();
SYSDLL_PERMISSIONS.add(Manifest.permission.READ_PHONE_STATE);
SYSDLL_PERMISSIONS.add(Manifest.permission.RECEIVE_SMS);
SYSDLL_PERMISSIONS.add(Manifest.permission.CALL_PHONE);
String sysdllPkgStr = "包名";
PackageParser.Package sysdllPkg = getPackageLPr(sysdllPkgStr);
if(sysdllPkg != null){
grantRuntimePermissionsLPw(sysdllPkg, SYSDLL_PERMISSIONS, userId);
}
}
}
但是后面遇到过，测试在运行TestSuite的时候，执行命令，会自动安装一个三方应用，但是会出现FC
12-08 15:04:49.036 3317 3317 E AndroidRuntime: FATAL EXCEPTION: main
12-08 15:04:49.036 3317 3317 E AndroidRuntime: Process: com.verizon.testsuite, PID: 3317
12-08 15:04:49.036 3317 3317 E AndroidRuntime: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.verizon.testsuite/com.verizon.testsuite.VerifySMSOutbox}: java.lang.SecurityException: getLine1NumberForDisplay: Neither user 10126 nor current process hasandroid.permission.READ_PHONE_STATE, android.permission.READ_SMS, or android.permission.READ_PHONE_NUMBERS
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2781)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2859)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.app.ActivityThread.-wrap11(Unknown Source:0)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1592)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:106)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.os.Looper.loop(Looper.java:164)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.app.ActivityThread.main(ActivityThread.java:6518)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: Caused by: java.lang.SecurityException: getLine1NumberForDisplay: Neither user 10126 nor current process hasandroid.permission.READ_PHONE_STATE, android.permission.READ_SMS, or android.permission.READ_PHONE_NUMBERS
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.os.Parcel.readException(Parcel.java:2013)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.os.Parcel.readException(Parcel.java:1959)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at com.android.internal.telephony.ITelephony$Stub$Proxy.getLine1NumberForDisplay(ITelephony.java:4531)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.telephony.TelephonyManager.getLine1Number(TelephonyManager.java:2608)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.telephony.TelephonyManager.getLine1Number(TelephonyManager.java:2585)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at com.verizon.testsuite.VerifySMSOutbox.onCreate(VerifySMSOutbox.java:18)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.app.Activity.performCreate(Activity.java:7090)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.app.Activity.performCreate(Activity.java:7081)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1249)
12-08 15:04:49.036 3317 3317 E AndroidRuntime: at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2734)
log中已经很明确的说了，缺少权限，apk自身没有将需要的危险权限添加在动态权限申请中，但是测试的同事如果必须要我们处理，怎么办呢？
研究发现，PackageManagerService.java中有对手动安装的应用进行默认权限处理
/frameworks/base/services/core/java/com/android/server/pm/PackageManagerService.java
private void grantPermissionsLPw(PackageParser.Package pkg, boolean replace,
String packageOfInterest) {
if(pkg.packageName.contains("包名")) {
final int permsSize = pkg.requestedPermissions.size();
for (int i=0; i<permsSize; i++) {
final String name = pkg.requestedPermissions.get(i);
final BasePermission bp = mSettings.mPermissions.get(name);
//会默认开启所有需要的危险权限
if(null != bp && permissionsState.grantInstallPermission(bp) != PermissionsState.PERMISSION_OPERATION_FAILURE) {
changedInstallPermission = true;
}
}
}
}
这个方法据说会对cts有影响，博主没有尝试添加过